Woodworking-machine.



N0. 664,3". Patented Dec. I8, 1900. P. P. BOSTWICK.

WOODWORKING MACHINE.

(Application fllgd Jan. 11, 1900.)

2 sheats -sheat 1.

(No Model.)

U ,E .W NT W E 5 A V U WQU \NITNEEEIEE- I ,W 49 2 ilL/ nonms PETERS No. 664,3". Patented Dec. [8, I900.

' P. P. BOSTWICK.

WUUDWURKING MACHINE.

(Application filed Jan. 11, 1900.)

. 2 Shaats$heet z,

- (No Model.)

302 iilllillllllllli INVIZNTU FERLEY. EIEISTWIIIK NORRIS PETERS on. mmuuruon WASHINGTON n. c.

UNITED STATES PATENT O FFICE.

v PERLEY P. BOSTWICK, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO THE PERCY LUMBER COMPANY, OF PERCY, NE\V HAMPSHIRE.

WOODWORKlNG-MACHINE.

srnczrloarxoiv forming part of Letters Patent No. 664,311, dated, Decem er 18, 1900-.

Application filed January 11, 1900- Serial No. 1,032. (No model.)

To all whom, it may concern:

Be it known that I, PERLEY P. BOSTWIOK, a citizen of the UnitedStates, residing at Boston, county of Suffolk, and State of Massachusetts, have invented an Improvement in Woodworking-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts;

This invention relates to what I shall for convenience term a woodworking machine, and though it is capable of performing other kinds of work it is especially adapted for turning out rough split stock.

In the form of the machine represented and hereinafter described it is utilized as a means for roughing-out bobbinsthat is, for shaping from suitable stock the blanks from which the bobbins are to be subsequently made.

The machine in the form thereof represented embodies a feed device for the stock,

a tool, and a shiftable carrier provided with toward and from each other in alternation in I such manner that the jaws can lift the stock and the centers subsequently firmly clamp the same for operation by a cutter.

In the drawings, wherein the invention is represented in a simple embodiment, Figure l is a side elevation of a machine involving my improvements. said machine. Fig. 3 is a front elevation of the carrier. Fig. 4 is a sectional detail show ing a jaw and a center and their supporting parts, and Fig. 5 is a detail view of'acutter for shaping the stock.

As hereinbefore stated, the machine is well adapted to roughing-out bobbins, and it is shown of a construction to secure such a product.

The framing for supporting the different parts of the machine may be of any suitable Fig. 2 is a plan view of character. It is represented consisting of an elongated frame A.

A shaft, as 12, is rotatively supported by suitable bearings located at what is shown as the left-hand end of the machine, and the cylinder 13 is fixed to said shaft and is provided peripherally with radial pins 14, cooperating in pairs and the pairs being in transverse alinement, as shown in Fig. 2.

An inclined feed-board is shown at 15, and it sustains a series of sticks or blocks, as 17, which gravitate along the same and onto the periphery of the cylinder 13, the blocks being entered successively between the peripheral pins upon said cylinder, and the act of removing the blocks causes a step-by-step rotation of the cylinder. The cylinder, in connection with the feed-board, constitutes a simple means for supplying the machine with the necessary stock to be operated upon. The shaft 12 carries the ratchet 18, with which the spring-pawl 19 cooperates, the pawl serving to prevent retractive movement of the feedcylinder.

The framing or table A supports upon the upper side thereof the standard 20, carrying the block 21, to which the cutter 22 is secured, the working face of the cutter being shaped in the present case to agree with the outline of a bobbin. The cutter 22 is shown to the right and above the feeding means, and in connection with these two parts a carrier is provided equipped with means to take one of the sticks or blocks 17 from said feeding meansand move it into position to be 0perated upon by the cutter, said cutter being stationary and the work or stock being rotated in the present instance, and the rotation of the stock or work is preferably a very rapid one, so that the output of the machine is very large.

The carrier is denoted in a general way by O and it is shown (see Fig. 3) as being of an approximately inverted-U shape, the parallel side branches or arms havinghubs or bearings, as 23, at their lower ends, through which the transverse shaft 24 loosely extends. The

shaft 24 carries near its middle the pulley 25,

around which the belt 26 passes, said belt also extending around a pulley 27, fixed to the shaft 28, the latter in turn being equipped with the pinion 29, meshing with the large gear upon the shaft 31. The shaft 28 carries the pulley 32, driven by the belt 33 from the pulley 34 upon the shaft 35. 36. is adjustably connected to the gear 30 at one end and is jointed at its other end to the bar 37, that unites the side arms of the carrier or frame C. By reason of the construc tion specified the carrier will be reciprocated or vibrated and at a comparatively low rate of speed, while the work supported by the carrier is driven at a very high velocity, this organization permitting the proper turning out of the bobbins.

The shaft 24, which is in the nature of a pivot for the oscillatory carrier 0, is provided with the fixed pulley 38, connected by the belt 39 with the small pulley 40, fixed to the livecenter 41, the dead-center being denoted by 42. The centers are journaled in suitable hearings in the carrier for rotative and sliding movements, they being adapted when rotated to also rotate the work clamped therebetween, and the latter being in contact with the cutter the bobbins or blanks can be turned out and the retractive sliding movement of the centers 41 and 42 will permit the release of the work.

In practice the stock is first taken up by two jaws, preferably mounted upon the carrier, and is afterward centered between the centers or spindles in such manner that the work may be turned out with a precision equaling that of hand operation. The jaws between which the stock isprimarily gripped are denoted by 43 and 44 and the centers pass through them, as seen inFig. 4, said jaws being supported for sliding movement upon bosses or projections, as 45, extending inward from the side arms of the oscillating carrier. The jaws comprise shanks or bodies, as 46, directly sustained by the bosses 45, and bell or funnel ends 47, which serve to lift the sticks 17 from the feeding mechanism. The opposite branches of the frame 0 are equipped with outwardly-disposed offsets, as 48 and 49,

to which the levers 50 and 51 are fu'lcrumed,

. said levers being bifurcated at their upper ends, as shownin Fig. 4, to play between the stops 52 and 53 at the extreme outer ends of the live and dead spindles, respectively. Both "centers are adapted to be held positively in. their backward and retracted position, and

other, said springs 57 and 58 encircling the bosses 45 and bearing, respectively, against the shanks 46 and the carrier 0.

The pitman connection 36, with the gear 30, serves as a convenient means for reciprocatingthe carrier 0, the jaws 43 and 44 being The pitman adapted when the carrier reaches the extreme end of its backward stroke to be thrown, one or both of them, into engagement with the opposite ends of one of the sticks 17 and upon the forward or opposite stroke to conduct said stick to the cutter 22 for operation, and as soon as the stick is lifted clear of the feedcylinder the latter is given a partial turn, so as to thereafter bring another stick into position to be lifted by the jaws.

The levers 60 and 61 are fulcrumed upon oifsets, as 62 and 63, respectively, extending toward each other upon the inside of the carrier, and said leversconstitute convenient actuators for the jaws to force them open when suitably operated. V

In Fig. 2 I have shown two cams for controlling the jaws 43 and 44, the same being denoted by 64 and 65, respectively, and having beveled o-r sloping faces, which are .disposed in the path of the lower arms of the levers 60 and 61 and which converge toward the feeding means.

On the rear stroke of the frame 0 and when said stroke is nearly completed the lower arms of the levers 60 and 61 will strike against the entering faces of the cams 64 and 65, respectively, thereby swinging the upper arms of said levers outward, and when the stroke is completed the lower arms of said levers will pass off the cam-faces, at which time the jaws 43 and 44 will be in line with the leading'stick or block 17. As the levers are free of the cams, the springs 57 and 58, which have been. under compression, will instantly force thejaws 43 and 44 toward each other and into engagement with the interposed stick, so that-the stick can be carried forward with said carrier for presentation to the cutter. During a part of the rear stroke of the carrier-the centers will have been moved outward,.so as not to effect the proper action of the grippingjaws, and upon the return or forward stroke of the carrier the centers will by the action of a cam be moved toward each other and will be held in such position as to firmly secure the stock therebetween, andat about the time the stick is to be operated upon by the cutter the jaws 43 and 44 will be positively swung open, so that the cutter cannot possibly come in contact therewith.

Two plates, as 66-and 67, are secured to the upper side of the framework and have camsurfaces 68 and 69, respectively, of such shape as to operate the levers 50 and 51 in such manner that the centers 41 and 42 can be moved outward at the time the stock is lifted .up and to subsequently push said centers toknock-off cams, as 70 and 71, the wedge faces of which are disposed in the path of the lower arms of the jaw-actuating levers 60 and 61,

IIO

be materially modified within the scope of theclaims.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a machine of the class described, a frame, a shaft upon which the frame is loosely carried for oscillation, means for moving the frame back and forth, mechanism upon the frame for operating the stock, including a rotary member,'means operated from said shaft for rotating said rotary member, a second shaft, said second shaft being supported by the framework of the machine, and means actuated by the second shaft for simultaneously operating the means which move the frame back and forth, and for rotating the shaft upon which the frame is mounted.

2. In a machine of the class described, a frame, a shaft upon which the frame is loosely carried for oscillation, means upon the frame for holding the stock, includinga rotary member, a second shaft, said second shaft being mounted upon the framework of the machine, a gear upon said second shaft, a rod connected respectively with the gear and the frame, a third shaft having a gear meshing with said other gear,a band-wheel upon said third shaft, a cooperating band-wheel upon the shaft that carries the frame, and connections between said last-mentioned shaft and said rotary member of the stock-holding mechanism.

3. In a machine of the class described, a frame, a shaft upon which the frame is loosely carried for oscillation, means for moving the frame back and forth, mechanism upon the frame for operating the stock, including a ro= tary member, means operated from said shaft for rotating said rotary member, a second shaft, said second shaft being supported by' the framework of the machine, means actuated by the second shaft for simultaneously operating the means which move the frame back and forth, and for rotating the shaft upon which the frame is mounted, a plurality of cam devices for controlling the stock-holding mechanism, feeding mechanism for the stock, and a knife to act upon the stock.

4. In a machine of the class described, a frame, a shaft upon which the frame is carried for oscillation,mechanism upon the frame for holding the stock, includinga rotary memher, a shaft having a wheel provided with a rod connected with said frame, connections between said shaft and the shaft which carries the frame, and means between said framecarrying shaft and the rotary member to operate the latter.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PERLEY P. BOS'IWIOK. 

